0

我正在尝试将字符串存储到动态分配的内存中。我能够分解字符串并将它们存储在结构的成员中并在函数中完美地打印它们readFile，但是当它在 main 中打印时，它只打印最后一次扫描，其他一切都是null. 我在想，也许我没有正确分配结构数组。这是我的程序。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#ifdef _MSC_VER
#include <crtdbg.h>  // needed to check for memory leaks (Windows only!)
#endif

#define MEM_ERROR printf("Not enough memory\n")
#define FLUSH while( getchar() != '\n' )

typedef struct
{
char id[5];
char *name;
int *sales;
int total;
int low;
int high;
}PERSON;

typedef struct
{
int worker;
int weeks;
PERSON *pAry;
}HEADER;

//  Function Declaration
void    valiFile(char nameIn[]);
FILE*   openFile(char nameIn[]);
void    getHeader(FILE* fpFile, HEADER *pHead);
PERSON* aloPerson(int workers);
void    readFile(FILE* fpFile, HEADER *pHead);
char*   aloName(HEADER *pHead, int strCount);
void    repeat(char nameIn[]);


int main ( void )
{
//  Local Declaration
FILE* fpFile;
char  nameIn[25];
char *endPro = "end";
HEADER *pHead = (HEADER*)calloc(1, sizeof(HEADER));

//  Statement
printf("Please select file to to open.\nsales or sales_2: ");
scanf("%s", nameIn);
FLUSH;

do
{
    valiFile(nameIn);
    fpFile = openFile(nameIn);
    getHeader(fpFile, pHead);
    readFile(fpFile, pHead);

    //printf("%s\n", pHead->pAry[0].id);

    //free(pHead);

    repeat(nameIn);
}

return 0;
}// main

/* ========== valiFile ==========

========== */
void valiFile(char nameIn[])
{
//  Local Declaration
char *file = "sales";
char *file2 = "sales_2";
int i;
int check = 0;

//  Statement
do
{
    for(i = 0; nameIn[i]; i++)
    {
        nameIn[i] = tolower(nameIn[i]);
    }

    if(strcmp(file, nameIn) != 0)
    {
        if(strcmp(file2, nameIn) != 0)
        {
            printf("\nPlease enter a valid file.\n");
            printf("sales or sales_2: ");
            scanf("%s", nameIn);
            FLUSH;
        }
        else
            check = 1;
    }
    else
        check = 1;
}
while(check != 1)
;

return;
}// valiFile

/* ========== openFile ==========

========== */
FILE* openFile(char nameIn[])
{
//  Local Declaration
FILE* fpFile;
char *strSale = "sales";

//  Statement
if(strcmp(strSale, nameIn) == 0)
{
    fpFile = fopen("sales.txt", "r");
    if(fpFile == NULL)
    {
        printf("File didn't read correcty.\n");
        exit(100);
    }
}
else
{
    fpFile = fopen("sales_2.txt", "r");
    if(fpFile == NULL)
    {
        printf("File didn't read correcty.\n");
        exit(100);
    }
}

return fpFile;
}// openFile

/* ========================= getHeader ========================

============================================================*/
void getHeader(FILE* fpFile, HEADER *pHead)
{
//  Local Declaration
int worker, salesWeek, i;
PERSON *list;

//  Statement
fscanf(fpFile, "%d %d", &worker, &salesWeek);
list = aloPerson(worker);
HEADER header = {worker, salesWeek, list};
*pHead = header;

return;
}// getHeader

/* aloPerson

*/
PERSON* aloPerson(int worker)
{
//  Local Declaration
PERSON *list;

//  Statement
list =(PERSON*)calloc(worker, sizeof(PERSON));
if(list == NULL)
{
    MEM_ERROR, exit(103);
}

return list;
}// aloPerson

/* readFile

*/
void readFile(FILE* fpFile, HEADER *pHead)
{
//  Local Declaration
char temp[50];
int strCount = 0;
char *loc;
char *ptr;
int i;

//  Statement
fscanf(fpFile, "%*d %*d");
for(i = 0; i < pHead->worker; i++)
{
    while(fgets(temp, sizeof(temp), fpFile))
    {
        ptr = temp;
        loc = strchr(temp, ' ');
        strncpy(pHead->pAry[i].id, temp, (loc - ptr));
        ptr += (loc - temp);
        *ptr++;
        loc = strchr(temp, ';');
        strCount = (loc - ptr);

        pHead->pAry[i].name = aloName(pHead, strCount);

        strncpy(pHead->pAry[i].name, ptr, (loc - ptr));
        ptr += (loc - ptr);
        printf("%s\n", pHead->pAry[i].name);
    }
}


return;
}// readFile

/* aloName

*/
char* aloName(HEADER *pHead, int strCount)
{
//  Local Declaration
char *names;

//  Statement;
names = malloc((strCount + 1)*sizeof(char));

return names;
}
4

0 回答 0